SBIR Phase I: Rapid Detection of Cyanide

9861065这项小型企业创新研究第一阶段项目的重点是开发氰化物检测系统。目前检测氰化物的方法要么相当慢、劳动强度大、不可靠，要么需要昂贵的仪器。该方法具有快速、准确、易用的特点，是一种便携式氰化物检测装置。该检测方法的基础是氰化物与特殊设计的表面涂层的化学反应，并使用表面增强拉曼散射光谱(SERS)检测该反应。通过适当的表面涂层设计，应该可以“调整”检测系统的灵敏度以适应各种应用。这项技术的商业应用意义重大。使用氰化物浸出技术提炼金银的活跃矿山有数千个，非活跃矿山有20多万个。能够迅速和准确地监测氰化物的使用，应能大大提高提取过程的效率，节省大量成本；它还将通过监测现有和不活跃矿山的潜在有毒废水，极大地促进环境保护。

9861065 This Small Business Innovation Research Phase I project is focused on the development of a cyanide detection system. Current methods for cyanide detection are either quite slow and labor intensive, unreliable, or require expensive, instrumentation. The method proposed should result in a portable cyanide detection unit which is rapid, accurate and easily used. The basis of the detection method is the chemical reaction of cyanide with a specially designed surface coating, and the detection of this reaction using surface enhanced Raman scattering spectroscopy (SERS). Through proper design of the surface coating it should be possible to "tune" the sensitivity of the detection system to a variety of applications. The commercial applications of this technology are significant. There are several thousand active mines utilizing cyanide leach technology to extract gold and silver, and more than 200,000 inactive mines. The ability to rapidly and accurately monitor cyanide use should substantially increase the efficiency of the extraction process, providing large cost savings; it will also greatly facilitate the protection of the environment through monitoring of potentially toxic effluents from existing and inactive mines.